• Compression Techniques

  Closed captioning track present, QT/AJA not playing captions

  Posted by Jay Agoglia on January 15, 2013 at 2:44 pm

  Hey Cow comm,

  I would like to get some insight as to why a QT cosed captioning track is present and the captions do not display or play out.

  QT7 sees the QT CC track
  AJA CTR xchange see the CC

  Neither will them play out.

  During the process of working with the file: (EV encoding)
  I saw and QC’d captions viewing the out put of all gear. From APR source file, to HD cam SR and back to APR again. I ran tests and am pretty confident that it has something to do with the source file (or possibly pipeline though tests would suggest otherwise)

  Any thoughts on what to look into to help trouble shoot this. I have an evertz cc encoder and a tektronix web 7200 rasterizer to obtain specific caption/aux data info.

  HD source file 1920×1080 29.97, APR

  Thank you
  Jason

  Jason Agoglia
  QC Manager
  On The Spot Media

  Jay Agoglia replied 13 years, 4 months ago 1 Member · 0 Replies
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